LM-400 Demo

The LM-400 is Lockheed Martin's mid-sized, multi-mission satellite bus, designed to support communications, imaging, and remote sensing across orbital regimes. This flight was a technology demonstration to validate the platform's design ahead of operational deployment, designated "Message in a Booster." It was the first of 15 launches under Firefly's contract with Lockheed Martin through 2029, with options for 10 more.

An anomaly during stage separation caused the first stage to disintegrate following separation, while the Lightning engine nozzle extension on the second stage was also lost, substantially reducing thrust. The second stage reached 320 km in altitude but did not reach orbital velocity, eventually impacting the Pacific Ocean north of Antarctica. Post-flight analysis identified plume-induced flow separation as the most probable root cause.